Ask Mac Questions and Get Answers from Experts ASAP
Hello there! Follow the steps below to fix your issue
Open Inspector from the toolbar men then choose the Document ( its the first option. Under Slide Size make sure it is set to default.
To get your projectors working again go to
Keynote > Preferences, and then Presenter Display. Make sure default is selected or try and change it to customize and see if you get an image on the projector.